diff options
Diffstat (limited to 'arch/arm/boot/dts/broadcom/bcm2837-rpi-zero-2-w.dts')
-rw-r--r-- | arch/arm/boot/dts/broadcom/bcm2837-rpi-zero-2-w.dts | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/broadcom/bcm2837-rpi-zero-2-w.dts b/arch/arm/boot/dts/broadcom/bcm2837-rpi-zero-2-w.dts new file mode 100644 index 0000000000..85cf594724 --- /dev/null +++ b/arch/arm/boot/dts/broadcom/bcm2837-rpi-zero-2-w.dts @@ -0,0 +1,137 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2022 Stefan Wahren <stefan.wahren@i2se.com> + */ + +/dts-v1/; +#include "bcm2837.dtsi" +#include "bcm2836-rpi.dtsi" +#include "bcm283x-rpi-led-deprecated.dtsi" +#include "bcm283x-rpi-usb-otg.dtsi" +#include "bcm283x-rpi-wifi-bt.dtsi" + +/ { + compatible = "raspberrypi,model-zero-2-w", "brcm,bcm2837"; + model = "Raspberry Pi Zero 2 W"; + + memory@0 { + device_type = "memory"; + reg = <0 0x20000000>; + }; + + chosen { + /* 8250 auxiliary UART instead of pl011 */ + stdout-path = "serial1:115200n8"; + }; +}; + +&bt { + shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>; +}; + +&gpio { + /* + * This is based on the official GPU firmware DT blob. + * + * Legend: + * "NC" = not connected (no rail from the SoC) + * "FOO" = GPIO line named "FOO" on the schematic + * "FOO_N" = GPIO line named "FOO" on schematic, active low + */ + gpio-line-names = "ID_SDA", + "ID_SCL", + "SDA1", + "SCL1", + "GPIO_GCLK", + "GPIO5", + "GPIO6", + "SPI_CE1_N", + "SPI_CE0_N", + "SPI_MISO", + "SPI_MOSI", + "SPI_SCLK", + "GPIO12", + "GPIO13", + /* Serial port */ + "TXD0", + "RXD0", + "GPIO16", + "GPIO17", + "GPIO18", + "GPIO19", + "GPIO20", + "GPIO21", + "GPIO22", + "GPIO23", + "GPIO24", + "GPIO25", + "GPIO26", + "GPIO27", + "HDMI_HPD_N", + "STATUS_LED_N", + "NC", /* GPIO30 */ + "NC", /* GPIO31 */ + "NC", /* GPIO32 */ + "NC", /* GPIO33 */ + "NC", /* GPIO34 */ + "NC", /* GPIO35 */ + "NC", /* GPIO36 */ + "NC", /* GPIO37 */ + "NC", /* GPIO38 */ + "NC", /* GPIO39 */ + "CAM_GPIO0", /* GPIO40 */ + "WL_ON", /* GPIO41 */ + "BT_ON", /* GPIO42 */ + "WIFI_CLK", /* GPIO43 */ + "SDA0", /* GPIO44 */ + "SCL0", /* GPIO45 */ + "SMPS_SCL", + "SMPS_SDA", + /* Used by SD Card */ + "SD_CLK_R", + "SD_CMD_R", + "SD_DATA0_R", + "SD_DATA1_R", + "SD_DATA2_R", + "SD_DATA3_R"; + + pinctrl-names = "default"; + pinctrl-0 = <&gpioout &alt0>; +}; + +&hdmi { + hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>; + power-domains = <&power RPI_POWER_DOMAIN_HDMI>; + status = "okay"; +}; + +&led_act { + gpios = <&gpio 29 GPIO_ACTIVE_LOW>; +}; + +&sdhci { + pinctrl-names = "default"; + pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>; +}; + +&sdhost { + pinctrl-names = "default"; + pinctrl-0 = <&sdhost_gpio48>; + bus-width = <4>; + status = "okay"; +}; + +&uart0 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>; +}; + +&uart1 { + pinctrl-names = "default"; + pinctrl-0 = <&uart1_gpio14>; + status = "okay"; +}; + +&wifi_pwrseq { + reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>; +}; |